Job Overview
Location
Brazil Sao Paulo - Remote
Job Type
Full-time
Category
Backend Engineer
Date Posted
March 27, 2026
Full Job Description
đź“‹ Description
- • Senior Engineer role focused on building scalable, secure, and high-performance applications in the payments and benefits space using .NET and Python technologies, directly contributing to WEX Inc.'s mission of delivering innovative financial technology solutions.
- • Design, develop, and maintain C# services and microservices; design, develop, and maintain cloud-native Python services and microservices; develop and maintain CI/CD pipelines to support automated deployments; collaborate with the team on data modeling and backend service design; write clean, maintainable, testable, and well-documented Python code; participate in code reviews and enforce best practices to ensure high code quality; troubleshoot and resolve issues efficiently in production and development environments; quickly learn new technologies and switch between tech stacks as needed; stay up-to-date with industry best practices and emerging technologies.
- • WEX Inc. is a global leader in financial technology solutions, specializing in payments, benefits, and fleet management, with a strong commitment to innovation, security, and customer impact; the engineering team operates with agility and collaboration, leveraging cloud-native architectures to deliver reliable, scalable systems that serve millions of users across industries.
- • Opportunity to deepen expertise in full-stack backend development across .NET and Python ecosystems, gain hands-on experience with event-driven architectures (Kafka), cloud platforms (AWS/Azure), and DevOps practices, while contributing to mission-critical systems that power financial transactions and employee benefits for enterprise clients worldwide.
🎯 Requirements
- • Strong professional software development experience with proven ability to design, develop, and maintain production-grade applications.
- • Solid experience with Python and frameworks such as FastAPI, including writing clean, testable, and well-documented code.
- • Experience developing automated unit and integration tests to ensure code reliability and maintainability.
- • Experience with event-driven architectures and Kafka for building scalable, decoupled systems.
- • Strong knowledge of object-oriented programming principles and their application in C# and Python.
- • Experience with SQL and database design, including schema optimization and query performance tuning.
- • Understanding of SSO technologies (OAuth, SAML) for secure identity and access management.
- • Experience with cloud platforms (AWS, Azure) for deploying and managing cloud-native services.
- • Hands-on experience with microservices architecture, including service decomposition, API design, and inter-service communication.
- • Strong problem-solving, debugging, and collaboration skills to thrive in a fast-paced, team-oriented environment.
🏖️ Benefits
- • Competitive compensation package aligned with market standards for senior engineering talent in Brazil.
- • Flexible remote work arrangement, enabling work from anywhere in Brazil with no relocation required.
- • Access to professional development resources, including training, certifications, and conference participation.
- • Comprehensive health and wellness benefits, including medical, dental, and vision coverage.
- • Generous paid time off and holiday allowance to support work-life balance.
- • Equity or stock-based compensation opportunities to share in the company’s long-term success.
- • Collaborative, inclusive culture that values innovation, continuous learning, and technical excellence.
Skills & Technologies
About WEX Inc.
WEX Inc. is a global commerce platform headquartered in Portland, Maine, providing payment processing and business solutions across fleet, travel, and healthcare sectors. Founded in 1983, the company offers fuel cards, corporate payments, virtual cards, and benefits administration technology that simplifies complex transactions, enhances security, and delivers data-driven insights for businesses of all sizes. WEX serves customers in North America, South America, Asia-Pacific, and Europe, enabling efficient fleet operations, streamlined travel booking, and improved healthcare benefit management through innovative payment systems and software.
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